Here are the solutions to the questions:
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Plants grow better in soil provided with appropriate amount of fertilizers. Which step of an experiment does the statement belong to?
The statement "Plants grow better in soil provided with appropriate amount of fertilizers" is a testable prediction or an educated guess about the outcome of an experiment. This is known as a hypothesis.
The correct option is C).
C) Hypothesis
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Which of the following statements is true?
Let's analyze each statement:
- A) Publication of illegal materials in digital form is not a cyber crime. This is incorrect; publishing illegal digital materials is a cyber crime.
- B) Three years' custody or two lakhs fine or both punishment is for the removal of other's data knowingly. This statement describes a common legal consequence for cyber crimes involving data theft or manipulation, making it a true statement regarding cyber law.
- C) Not violating secrecy of computer is internet safety. While respecting privacy is part of internet safety, this statement is vaguely phrased and not as definitively true or comprehensive as option B.
- D) Use of firewall is code of a conduct of computer. This is incorrect; a firewall is a security tool, not a code of conduct.
The most accurate true statement is B).
B) Three years' custody or two lakhs fine or both punishment is for the removal of other's data knowingly.
- Which of the components is found only in an animal cell?
Let's examine the options:
- A) Plastids (e.g., chloroplasts) are found in plant cells, not animal cells.
- B) Cell wall is found in plant cells, fungi, and bacteria, but not in animal cells.
- C) Golgi body (or Golgi apparatus) is present in both plant and animal cells.
- D) Centrosomes are organelles primarily involved in cell division and are characteristic components found only in animal cells and some lower plant forms, but not in higher plants.
The correct option is D).
D) Centrosome
- What is the man doing by connecting the device to the tyre in the given picture?
The image shows a person connecting a device to the valve stem of a tire. This device is a tire pressure gauge, which is used to measure the air pressure inside the tire.
The correct option is A).
A) Measuring air pressure inside the tyre